Bottle cap



S. WEINTRAUB BOTTLE CAP Filed-NOV. 13. 1923 INVENTOR ATTORNEY Patented Dec. 7, 1926. I

i 1 ime fissure; wimmers "or NEW was; in. j

-Bo'rrL'E car. 5

a licant-filed n vember :13, 1923.; Serial no; e74, 7{1-.-

contain aerated or carbonated beverages.

One of theobjects of the invention is to i there being'a space ltnormally below it, over the disc 11, and at the raised center of provide a crown-cap capable of effectually sealinga bottlewhen applied and retain its contents in a state of until required. V

Y Another purpose is toproducea bottle cap lthat canybe removed'by an easy. manualoperrh atlon applied at the. initial stage" and coin-l pletedbytheforce oftheair, or gas contained within the bottle;

A further'aim is in the provision of'an essent1ally cheap, sanitary andysimple cap,

capable of being applied" expeditiously by ordinary bottle capping f machines with less' "than the usual danger to thecontainer.v

These and similar aims and objects, which Will later appear, are accomplished by the novel construction, combination and an rangement of'parts hereinafter described and g showing the'cap ina partially raised posif shown in the accompanying drawing, form-' ing an essential par't of this disclosure, and

enlargement B'near its reduced vhead/ 7- at the mouth 8, the bead blending into the enlargement 'by a curved; circumferential groove 9, such forms of bottles being of com mon occurrence.

The closure includes disc of pliable ylelding material, 'suitedto seat upon the bottle top, covering thernouthand acting as a seal, cork being preferred as the rnaterial for manifest-reasons.

' both heing non-absorbent and not affected by the liquids with which they may come inicon O er the upper surface of the cork is dis poseda thin sheet or disc of waxed orpar aflined paper 11, the treated paper and cork tact. V. A- crown 12 made f aluminum; relativel of the'cork lOat-the edge of the disoll.

perfect preservation r The cover is composed ofa plate 16 hav ng 'rninu'rn, the metal being nonecorrosive. clean the, outline of the cover, these linesbounding a tongue 22 which may be readily separat'ed stiff and having a certain degree of resillence, hasformed on it. a downturned or flanged edge 13 which rests uponthe margin This crown is slightly concavo-convex,

the crown is a semi-circular protuberance 15. 1

'a downwardly curvededgel'Z: blending in:

'-to acylindrical skirt or flange- 18 which ex: tends, when appliedjto the; bottle, over the recess 9,andis cr'irnped to produce undula-. tions 19 whichti'ghtly. engage under thebead; 7 holding the entire structureifirmly in pacer: a

f Experience has' vdeveloped the fact that the best results are attained when this cover is made of relatively thin and very soft alu-.

ly of pleasing. appearance and amendableto; beingidrawn 1nto its original cup'shape, as"

well as, easily crimped to adhere to the bottle neck with little or-no danger'of breaking' or chipping the same, occurrences which fre- I quently happen with harder metals.

The, lower surface of the cup-shaped cover l 16 normally rests on the tip of-the protuherance 15 and its outer surface is provided with weakening slits 20, pass ng "only partially a through; the metal, these slits takingthe form- 'of 'opposed arches terminating in the solid metal at one end and joined at theother by a similar weakening slit 21 concentric with from the body of the cover by inserting a finger nail, pin or otherip'ointed article at the point 23 on the cover which is slightly depressed for that purpose.

r '95 As the metal of the cover is quite thin and a very soft, the tongue may Joe raised without difficulty, permitting the crown to rise, which "in practice it is found to doautomatically,

loosen ng the disc 11 and cork, thus allow- 7 ing the gas contained in the beverage to es-- i cape, forcing the cork upward into the cover to theextent'of raisingthe entire structure! free of theflbottle'mouth.

It has beenfound in practice-that enough 1 force is-invariably exerted by the confined gas in ordinary aerated bevera'ges to raise the cover, smoothing out the corrugations and free the cap, immediately upon ruptur V ing the tongue 22 provided the parts the prop- 1 1,0

It is however evident that various minor changes might be resorted to without departing from the spirit and scope of the invention as claimed, hence I do not wish to limit myself to the exact construction shown.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent, is r 1. In a cap for bottles containing carbon ated fluid, a sealing disc for the open top of the bottle, a crimped cup-shaped member fitted on the top of the bottle and normally holding the disciin sealing position, cooperating means between. the disc and the cup shaped member adapted to be actuated to permit the gas in said bottle to unseat and remove the cup-shaped member from the bottle.

2. In a cap for bottles containing aerated or carbonated fluid,a sealing disc for the open top of the bottle, a cup shaped member fitted on the top of the bottle and having weakened lines in its upper surface defining a tongue, a conca-vo-convex spring plate interposed between the cup shaped member and said sealing disc, a central protuberance formed on said plate and normally in contact with the underside of said tongue whereby said disc is maintained in a sealing position,

said disc being unseated upon the actuation of thetongue to permit the protuberance to move upwardly through the cup-shaped member and whereby to permit the gas in r the bottle to unseat the disc and remove the cup-shaped member from the bottle.

dis osed above the crown a de ending crimping flange formed on said plate adapted for engagement with the beaded neck portion of the bottle, said platehaving weakened lines formed therein to form a tongue, said tongue normally engaging the aforementioned protuberance for 'maintaining the cork disc in a sealing position, the gas confined in the bottle being adapted to unseatthe disc and automatically release the crimpedplate from the bottle when the tongue is lifted upwardly out of engagement with said protuberance.

Signed at New York, in the county of New York and State of New York, this 23rd day of October A. D. 1928.

r SAMUEL WEINTRAUB. 

